clench vs embracing

clench and embracing both are nouns.

Word	Noun	Adjective	Verb	Adverb
clench	Yes	No	Yes	No
embracing	Yes	No	No	No

As nouns, embracing is a hyponym of clench; that is, embracing is a word with a more specific, narrower meaning than clench:

clench: the act of grasping
embracing: the act of clasping another person in the arms (as in greeting or affection)

Other hyponyms of clench include choke hold, chokehold, embrace, embracement, wrestling hold.

clench (noun)	embracing (noun)
the act of grasping	the act of clasping another person in the arms (as in greeting or affection)
a small slip noose made with seizing

clench (verb)	embracing (verb)
hold in a tight grasp
squeeze together tightly